Reference number
ISO/TR 9372:1993
© ISO 2024
Technical Report
ISO/TR 9372:1993
Plastics — Basic materials for polyurethanes — Determination of the amounts of 2,4- and 2,6-isomers in toluenediisocyanate by infrared spectroscopy
Edition 1
1993-03
Withdrawn
Withdrawn (Edition 1, 1993)

Abstract

The principle of the method is preparing a cyclohexane solution of the sample to be analyzed, measuring the absorbance for the 810 cm^-1 and 782 cm^-1 bands which are characteristic of the 1,2,4- and 1,2,6-positions on the aromatic ring, and calculating the absorbance ratio. Applies to mixtures containing 5 % to 95 % of the 2,4-isomer.

General information

  • Status
     : Withdrawn
    Publication date
     : 1993-03
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 61/SC 12
    ICS :
    83.080.10 
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